This problem started just as we started as we were leaving home.<br/>Check the antenna on the roof, everything looked good, but still the "Ant Up" warning.<br/>That evening checked the Warning Lt/Alarm, wiring, A-4749<br/>Pin 18 shows (+) to the antenna up. I assume that the Guard roof switch (like the one for the screen door) could be bad. <br/>Wired in a switch from pin 18 to ground....